django - pisa : adding images to PDF output

Question

I\'m using a standard example from the web (http://www.20seven.org/journal/2008/11/pdf-generation-with-pisa-in-django.html) to convert a django view / template into a PDF.

Answer 1

def render_to_pdf( template_src, context_dict):

    template = get_template(template_src)
    context = Context(context_dict)
    html  = template.render(context)
    result = StringIO.StringIO()

    if page has an image.something:
        pdf = pisa.pisaDocument(StringIO.StringIO(html.encode("UTF-8")), dest=result, link_callback=fetch_resources)
    else  no image.something :
        pdf = pisa.pisaDocument(StringIO.StringIO(html.encode("UTF-8")),result)

    if not pdf.err:
        return HttpResponse(result.getvalue(), mimetype='examination_report/pdf')
    return HttpResponse('We had some errors
%s
' % escape(html))



def fetch_resources(uri, rel):
    if os.sep == '\\': # deal with windows and wrong slashes
        uri2 = os.sep.join(uri.split('/'))
    else:# else, just add the untouched path.
       uri2 = uri

    path = '%s%s' % (settings.SITE_ROOT, uri2)
    return path